Hiller X-18
| X-18 | |
|---|---|
| Ground testing the X-18 tiltwing | |
| General information | |
| Type | Experimental prototype | 
| Manufacturer | Hiller Aircraft | 
| Designer | |
| Status | Aircraft scrapped 1964 | 
| Number built | 1 | 
| History | |
| First flight | 24 November 1959 | 
| Developed from | Chase YC-122 Avitruc | 
The Hiller X-18 was an experimental cargo transport aircraft designed to be the first testbed for tiltwing and V/STOL (vertical/short takeoff and landing) technology.